Symposium on Patterning Along an Axis: Insights from Cnidarian Development; to be held July 10-11, 2003; Lawrence, KS

0306765卡特赖特专题讨论会，“沿着沿着一个轴的图案：刺胞动物发展的见解”，将在2003年7月6日至11日在堪萨斯劳伦斯的堪萨斯大学举行的第七届腔肠动物进化国际会议上举行。 这次研讨会的资金将提供一个机会，分享有关刺胞动物的轴向模式及其对后生动物进化的影响的信息和想法。先前的研究已经揭示了在远亲生物中控制轴向模式的类似机制的证据，这表明轴向模式的调节在后生动物中是高度保守的。 这些信息大部分来自于双半球中的模式生物。 刺胞动物，一个可能的姐妹群bilaterians，需要轴向图案机制，以指定在一个典型的生命周期中所代表的各种发展轴;前/后轴的浮浪幼虫，aboral/口头轴的水螅和水母的形式，和发展轴的匍匐茎从其中息肉芽殖民形式。在何种程度上，这些轴和轴向图案机制共享bilaterians在很大程度上是未知的，但许多基因已被鉴定刺胞动物的序列和表达模式与Bilateria轴向图案基因的相似性。 刺胞动物的基本phlyogenetic位置使其成为一个理想的群体，为理解轴向模式机制如何进化提供了重要线索。这次研讨会将汇集刺胞动物生物学家谁研究不同的刺胞动物物种和刺胞动物轴向图案的不同方面，包括幼虫，息肉，水母和殖民地范围的图案。 这提供了一个独特的和及时的机会，以发展更好地了解如何在刺胞动物的身体计划的发展轴进行调节，以产生不同的形式内发现的刺胞动物，并评估刺胞动物的发展机制与其他后生动物共享的程度。

0306765CartwrightThe symposium, "Patterning Along an Axis: Insights from Cnidarian Development," will be held at the 7th International Conference on Coelenterate Evolution, July 6-11, 2003, at the University of Kansas in Lawrence Kansas. Funding for this symposium will provide an opportunity for the sharing of information and ideas regarding axial patterning in cnidarians and its implications for metazoan evolution. Previous studies have revealed evidence for similar mechanisms controlling axial patterning in distantly related organisms, suggesting that the regulation of axial patterning is highly conserved across the Metazoa. Most of this information comes from model organisms in the Bilateria. The cnidarians, a probable sister group to bilaterians, require axial patterning mechanisms to specify the various developing axes represented in a typical life cycle; the anterior/posterior axis of the planula larva, the aboral/oral axis in polyp and medusoid forms, and the developing axes of stolons from which polyps bud in colonial forms. The extent to which these axes and axial patterning mechanisms are shared within bilaterians is largely unknown, but many genes have been characterized in cnidarians whose sequence and expression patterns suggest similarities with Bilateria axial patterning genes. The basal phlyogenetic position of the Cnidaria make this an ideal group for providing important clues for understanding how axial patterning mechanisms evolved. This symposium will bring together cnidarian biologists who study different cnidarian species and different aspects of cnidarians axial patterning, including larvae, polyps, medusae and colony-wide patterning. This provides a unique and timely opportunity to develop a greater understanding of how the developmental axes in the cnidarian body plan are regulated to generate the diverse forms found within the Cnidaria, and to assess the degree in which mechanisms of cnidarian development are shared with other metazoans.